Logging-hook.



No. 870,593. PATENTED NOV. 12, 1907. A. SPROGIS. LOGGING HOOK.APPLICATION FILED 1330.19. 1906.

Q Howie a AUGUST SPROGIS, OF GLEASON, WISCONSIN.

LOGGING-HOOK.

Specification of Letters Patent.

Patented Noe. 12, 1907.

Application filed December 19. 1906. Serial No. 3481514.

To all whom it may concem:

Be it known that l, A UGUST Srnoers, a citizen of the United States ofAmerica, residing at Gleason, in the county of Lincoln and State ofWisconsin, have invented new and useful Improvements in Logging-Hooks,of which the following is a specification.

This invention relates to logging hooks, and one of the principalobjects of the same is to provide a hook with a locking lever and tripfor releasing the hook from the wrapping chain which holds the logs uponthe car.

Another object of my invention is to provide a logging hook in which allthe parts will be inclosed within a casing and thus protected from theweather.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a logging hook made in accordance withmy invention. Fig. 2 is a vertical section of the same. Fig. 3 is a rearelevation of the hook. Fig. 4 is a perspective view of the lockinglever.

Referring to the drawing for a more particular description of myinvention, the numeral 1 designates the casing provided with an eye 2for one end of the wrapping chain. This casing is hollow and pivotedupon a screw 3 is a hook 4, said hook having a curved shank 5 extendinginto the casing and provided with a curved portion 6 at its upper end. Alocking lever 7 is provided with trunnions S at its upper end, saidtrunnions being journaled in the casing 1 upon one side and in adetachable plate 9 secured to the casing by means of screws 10. Thelocking lever is provided with a curved projection 11 between thetrunnions which is adapted to engage the curved portion 6 of the shank 5of the hook when said locking lever is in the full line position shownin Fig. 2. The lever '7 is held in its locking position by means of apin 12 extending through registered openings in the casing and throughan opening 13 in the locking lever. The pin 12 is connected to the lever7 by means of a chain 14 suspended from a ring or eye 15 secured to thelever 7. A ring 16 is connected to the eye 15 for the attachment of a.tripping chain designed for thepurpose of pulling out the lever into theposition shown in dotted lines in Fig. 2 to permit the hook 4 to swinginto the dotted line position in said figure for releasing the wrappingchain.

The operation of my invention may be briefly described as follows: Thewrapping chain, having been passed around a load of logs and connectedto the hook 4, will be held against accidental detachment by means ofthe pin 12 which holds the locking lever 7 in place. When it is desiredto disconnect the wrapping chain from the logs for unloading the same,the pin 12 is withdrawn and the tripping chain connected to the ring 16is pulled to swing the locking lever outward in the position shown inFig. 2 in dotted lines, thus permitting the hook 4 to assume the dottedline position in said figure and release the wrapping chain.

From the foregoing it will be obvious that my safety logging hook iscomparatively simple in construction; all the operative parts areinclosed within a casing and thus protected from the weather; that thehook can be quickly tripped by pulling upon a chain out of harms way;that the device is comparatively simple in construction, can bemanufactured at comparatively slight cost, and is strong, durable andeflicient in use.

Having thus described the invention, what I claim is:

A logging chain comprisingn casing, a hook pivoted within the casing andprovided with a shank extending within the casing, said shank having acurved end, a locking lever provided with trunnions. and a curvedportion to engage the curved end of the shank of the hook, and a pin tohold said locking lever in locking position.

In testimony whereof, I attix my signature in presence of two witnesses.

AUGUST SPROGIS.

Witnesses 1

